Sirius (407)	α Canis Maj	-1.46	16° 39′ S	06h 43m	102.2
Gienah (495)	γ Corvi	-0.94	22° 37′ S	12h 14m	186.1
Canopus	α Carinae	-0.72	52° 40′ S	06h 21m	96.6
Arcturus (524)	α Bootis	-0.05	19° 27′ N	14h 13m	216.4
Toliman	α Centauri	-0.01	60° 38′ S	14h 36m	222.2
Vega (589)	α Lyrae	0.03	38° 44′ N	18h 35m	282.8
Capella	α Aurigae	0.08	45° 57′ N	05h 13m	79.4
Rigel	β Orionis	0.18	08° 15′ S	05h 12m	79.1
Procyon (420)	α Canis Min	0.34	05° 21′ N	07h 37m	115.9
Achernar (703)	α Eridani	0.45	57º 29' S	01h 36m	24.3
Betelgeuze (394)	α Orionis	0.58	07° 24′ N	05h 52m	89.3
Agena	β Centauri	0.61	60° 08′ S	14h 00m	213.1
Altair (609)	α Aquilae	0.76	08° 44′ N	19h 48m	301.3
Spica	α Virginis	0.98	10° 54′ S	13h 23m	203.7

We ought to look ahead in the glyphs from Toliman to Ke Kwan, the 'Cavalry Officers', in May 2:

What could be a better name for a Centaur with a drawn bow fighting the evil dark force? A cavalry officer must be one with his horse.

From Sirius to Toliman there were precisely 120 days (221.2 - 181.2 = 120.0) and from January 1 to May 1 there were also 120 days (I am writing in past tense in order to present the rongorongo view):

The star Bharani (41 Arietis) has the fraction 0.4 and it came 14 days after Sheratan:

The curious Chinese notation 4¹ Arietis for the star 41 Arietis (Bharani) probably was meant as a Sign in order to put focus on the RA position which once was at RA day 41 (= 'one more' than 40).

14	Wall	γ Pegasi (Algenib)	Porcupine
15	Legs	η Andromedae (?)	Wolf
16	Bond	β Arietis (Sheratan)	Dog
17	Stomach	4¹ Arietis (?)	Pheasant

In the northern spring the heliacal dates following April 1 meant increasing Sun and in the southern hemisphere the same was true for the nakshatra dates in the April  nights. The Arabs north of the equator had a helical system which easily could be adapted to the view from Easter Island by changing it to a nakshatra system. The same manzil calendar was in clear view in the nights close to the Full Moon.

The heliacal dates from Toliman in November meant increasing darkness for the Arabs and the same was true for the Easter Islanders when they in November by using the nakshatra view could see the April asterisms.

The Bharani star was in Cb1-15 possibly depicted as a Niu glyph, but according to my line of investigation we ought instead try to see a connection with Kochab (β Ursae Minoris).

Yes, I was probably right I immediately could find out:

"Kochab is from the Arabic title that it shared with α; and it perhaps was this star that the Greek astronomers called Πόλος, for it was near the pole 1000 years before our era." (Allen)

What better opposite star for Bahrani (yoni) than the greatest 'staff' (linga) of all?

Probably the male Pole star constellation where Polaris stood firm and tall, with Kochab as a Sign of direction (a moving time indicator), once was used in order to find a suitable female 'yoni' constellation. Bharani was found suitable for this role, becasue the star had the right RA fracton, precisely 14 days after Sheratan.

When I once summarized in my preliminary glyph type dictionary my somewhat intuitive ideas regarding Niu it was not far from our new discoveries: